As the name indicates, cold air guns are utilized as a cold air source and are useful for improving the performance of dry machinery by decreasing any heat built up in them. You can choose from devices with different cooling capacities and styles and adjustable control to regulate the amount of cold air it produces. Cold air guns are used for spot cooling, mostly in repair, shops, machining, and many more. They use vortex tube technology and compressed air to cool as low as -30 deg F for multiple spot cooling applications. Cold air guns do not require any moving parts or electricity at the target but only a compressed air source.
Working Mechanism
Cold air guns utilize vortex tube technology and filter compressed air to produce cold air for many industrial spot cooling applications. Tre is no electricity needed; however, they only need a compressed air source to run efficiently. They also do not consist of any moving parts; therefore, no wearing out occurs.
Cold air guns are most commonly used to cool metal parts in machining and repairing metals, ceramics, wood, plastic, etc. Cold air machining works better than mist coolants and helps increase the lifespan of tool life and feed rates on dry machining operations. The cold air guns produce an effective cooling effect that reduces heat-related parts growth and improves parts tolerance and surface finishing quality. Air gun nozzles consist of adjustable temperature and some flow settings. Some other models have frost-free nozzles to eliminate the mess created by concentration and frost.
Benefits of Cold Air Guns
When heat builds up in machines, that can reduce the machining rate and cause damage to certain parts, making them faulty or incapable of functioning. Cold air guns function by creating a stream of clean air at a certain low temperature to prevent this heat build-up. They are useful for improving the tool operating life and increasing productivity in machining operations where it is not appropriate to use liquid coolants. They have no moving parts to wear out and are quiet while operating.
Spot Cooling Air Gun Models
Adjustable Cold Air Gun:
This is the most popular and versatile model of cold air guns.
Cold Air Pistol:
This model provides a less costly, easy-to-use, ergonomic alternative to cold air guns for intermittent spot cooling applications.
Mini Cold Air Gun:
These are small in size, making them beneficial in grinding operations.
Thread Guard:
This model’s function is to decrease breakage and thread burning.
Hot Air Gun:
These are utilized to pre-heat different parts and processes without electricity.
Applications of Cold Air Guns
As versatile spot-cooling equipment, cold air guns are utilized in multiple industrial processes, fabrications, and packaging. The most common spot cooling applications include cooling during plastics, metals, rubber, ceramics, wood, and other materials. As they have no moving parts to wear out, the internal vortex tube technology converts the compressed air into a sub-zero air stream, increasing temperatures as low as -30°F.
- Majorly used in drilling, milling, turning, and other metalworking applications.
- Surface grinding, tool sharpening, and drilling,
- Machining of composites, plastics, wood, and other material.
- CNC routers, band saws, and blades.
- Spot cooling of parts, assemblies, and moulds.
- Industrial textile and sewing.
- Setting hot melts and adhesives.
